Lock.



F. c. DAVIS.

LOCK.

' APPLICATION FILED OCT. 25, 1915. 1,17 7,495. v Patented Mar. 28, 1916.

2 SHEETS-SHEET I.

awe/MM E C. Davis THE COLUMBIA PLANOGRAPH c0, WASHINGTON. n. c.

F. C. DAVIS.

LOCK.

APPLICATION FILED OCT. 25. 1915.

1 177,495. Patented Mar. 28, 1916.

2 SHEETS-SHEET 2 F. C. Dario v THE COLUMBIA FLANOGRAPH 20., WASHINGTON, D.

UNiTED STATES PATENT orrioi 'FREDRICK C. DAVIS, 01? GALLUP, MEXICO.

LOCK.

To all whom it may concern:

Be it known that I, FREDRIGK C.-'DAvIs, a citizen of the United States, residing at Gallup, in the county of McKinley and State of New Mexicqhave invented new and useful Improvements in Locks, of which the following is a specification.

My invention relates to looks for sliding or rolling doors, and has particular appli'-,

cation to a sealed lock.

The principal object of my invention is l to provide a device of this character which will be automatically looked upon closing the door and which may be sealed in locked position whereby the lock may not be opened without breaking the seal.

Another object of my invention is to provide a device of this character which will be simple in construction, strong, durable and efficient and which may be manufactured at a nominal cost.

lVith the-above and other objects in View, the invention consists in the features of construction and the combination and arrangement of parts hereinafter described and claimed, reference being had to the accompanying drawings, in which:

Figure 1 is a side elevation showing my device attached to a door; Fig. 2 is a side elevation showing the front section of the lock casing removed; Fig. 3 1s a vertical section taken on the line A-A of Fig. 1;

Fig. 4: is a vertical section taken on the line BB of Fig. 1; and Fig. 5 is alongitudinal section taken on the line C- C of Fig. 1.

Referring to the drawings in detail, 1 designates a movable element, which in the present instance is the sliding door of a car, while 2 designates a stationary element or the side of the car. Secured to the stationary element at its lower edge is a bolt casing 3 which is substantially U-shaped in cross section, the parallel arms being provided with alined openings 4 which receive a hollow rivet 5. Pivotally mounted upon the rivet 5, between the parallel arms, is one end of a link 6. Pivotallv secured to the opposite end of the link is one end of the improved form of locking bolt 7, the oppo-v site end of the locking bolt 7 having the edges thereof inclined toward each other, as at 8, to provide a substantially V-shaped end. Adjacent the inclined edges of the Specification of Letters Patent.

Application filed 0ctober'25, 1915.

locking bolt is a vertically arranged opening 9 which is elongated and substantially rectangular in cross section. Rearwardly of the opening 9 is a recess 10 which is formed on the upper edge of the lockingbclt and adapted to receive a gravity catch, as will be hereinafter described. Secured to the movable member in any suitable manner is my improved form of lock casing which consists of frontand, rear sections- 11 and 12 respectively. The front section 11 is secured to the rear section in any suit,- able manner and is provided with a recess 18 adjacent the upper edge thereof and front end of the casing, which is formed so as to providea shoulder 14. Thefront end wall of the recess is provided with a rectangular orifice 15 adjacent the lower end thereof, while directly above the orifice is a circular opening 16 which is preferably arranged in vertical alinement withthe orifice. The purpose of these openings will appear as the invention is more fully understood. The rear section 12 of the casing is provided with an integral portion 17 which,

the catch having one end thereof pivotally mounted adjacent the rear end of the casing, said end being provided with a projection 20 which is adapted to work within the cut away portion 18. It will be noted that the upper edge of the integral portion 17 is adapted to support the gravity catch in horizontal position and properly position the catch when in looking engagement with the locking bolt. This gravity catch extends longitudinally of the casing and terminates at a point adjacent the front end of the easing, the free end being provided with a head 21. The lower edge of the head is inclined from the front wall to the rear wall, as at 22. to permit the insertion of the locking bolt into the casing when in locked position. The upper end of the head 21 is provided with an offset portion 23 which is adapted to work within the recess 18 and to engage the shoulder 1% when in active position.

This offset portion 23 is provided with 21.1 rectangularopening 24 anda circular open ing 25 which are adapted to register with the respective openings 15 and 16 formed in the end wall of the recess when the catch is lying upon the shoulder. The casing 3 is provided at the forward end with an open- .in 26 ad'acent the lower ed 'e thereof and inclined. edge 22 of the head and force the catch upwardly, thus permitting the locking bolt to be moved forwardly so as to cause the V-shaped end to lie within the recess 18 ofthe integral portion 17 The converging side walls of the recessed portion'serve to act as a positive guide for the tapered end of the-bolt and properly position the latter within the casing so as to dispose the recess formed therein in proper position with relation to the head of the gravity catch. Owing to the recessed portion 10 in the locking bolt, the head of the gravity catch will fall within the recess after the locking. bolt has completed its inward movement. As previously described, when the gravity catch is in active position theofiset portion 23 of the head will lie upon the shoulder 14 of the recess so as to cause the openings formed in the offset portion to register with the openings in the end wall of the recess. A sealing element is then trained through certain of the openings in the end wall and through the openings in the head so that the gravity catch will belocked inactive position and the consequent removing of the locking bolt will be prevented without the breaking of the seal. In the present instance I have shown two forms of openings to accommodate sealing elements of different configurations, the circular opening being adapted to be used for wires while the other is used for the metal band seal. release the locking bolt after the seal has been removed l have provided the loweredge of the casing with a vertical opening 27 which is adaptedto register with the opening 9 in the locking bolt when the latter is in locked position, whereby a tool of any description may be inserted into the casing and by forcing the trol upwardlv the catch will be lifted to relieve the locking bolt of the influence of the same. The catch being in elevated position the bolt is then mm'ed outwardly to cause the recess to pass beyond theheacl ofthe catch. It is to be understood 5 of the casing limits the downward movement of the same andpositions it properly with respect to the opening formed in the casing. j mounted upon the movable element. \Vhen the locking bolt is removed from the casing it may be swung upwardly andrearwardly so that the same will not project beyond the surface of the stationary element.

It is thought from theforegoing descrip} tion, taken in connection with the accom-. panying drawings, that the construction and operation of my invention will be readily understood by those skilled in the art without further explanation and it will be further understood that slight changes may be made: in the size, proportion and shape and other minor :details of construction without departing from the spirit and scope of the.

claims appended hereto.

Having thus described my invention, 1'

claim:

1. In cornbinatioma movable element and a stationary element providing an abutment for the movable element, a swinging bolt carried by one of .said elements, said bolthaving a recess formed therein and a; vertical opening. extending through the same, a casing secured to the other member, a grav ty catch mounted in said casing, a head formed on said catch and adapted to lie withinsaid recess, said casing having an opening formed therein which is adapted to register withthe vertical opening in said bolt when the latter is in locked position whereby accessmay be had to the catch to remove the. head from locking engagement with the bolt, and means for sealing the catch in engagement with the bolt.:

2. In combination, a movable element and a stationary element providing an abutment.

for themovable element, a swinging bolt carried by one of said, elements, said bolt having a recess formed therein and vertical. opening extending through i the same, a

casing secured to the other member, a gravity 1 catch mounted in said casing, a head formed on said catch and adapted to lie withinsaid recess, said casing having an opening formed.

therein which is adapted to register with the vertical opening in said bolt when the latter is in lockedposition whereby access may be.

had to the catch to remove the head from locking engagement with'the bolt.

3. In. combination, a movable element and a stationary element providing an abutment. I

for the movable element, of a swinging bolt carried by one of said elements, a casing formed on the other element, a recess formed 1n sald casing to provide a shoulder, a pivoted catch mounted in sald casing and adapted to coact with the bolt, a head formed 7 on said catch, a projection formed on said head and adapted to engage said shoulder when the catch is in active position, and

FREDRICK C. DAVIS.

Witnesses ALFRED RUIZ,

E. A. MARTIN.

Copies or this patent may be obtained for five cents each, by addressing the Commissioner of Patents, I Washington, 11. c." i 

